This is a model of a mutetrahedron.

This is a model of a muoctahedron.

He said, 'It's difficult to make a life,' explaining the phrase 'When a man steps over the threshold, he has seven enemies.'

He said, 'Man shall not live by bread alone,' teaching me that spiritual satisfaction is also important.

This is a 六角四片四角孔ねじれ正多面體, in other words, a muoctahedron.

This mutetrahedron has a very unusual shape.

He said, 'The advantages of heaven and earth are nothing compared to the harmony among people,' emphasizing the importance of teamwork.